Dump-car.



No. 668,927. Patented Feb. 26, [90L T. n. mkmsu'r.

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No. 668,927. Patented Feb. 26, 190i. T. R. MGKNIGHT.

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THOMAS E. MOKNIGHT, OF AURORA, ILLINOIS, ASSIGNOR TO THE WESTERN WHEELED SORAPER COMPANY, OF SAME PLACE.

DUM P-CAR.

SPECIFICATION forming part of Letters Patent No. 668,927, dated February 26, 1901.

Application filed September 20,1900. Serial No. 30,549. (No model.)

To all whom it Tit/(gay concern:

Be it known that I, THOMAS R. MOKNIGHT, a citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Dnmp Oars, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to dump-cars, and has particular reference to dump-cars in which the side-boards of the car-bed are arranged to be raised for the discharge of theload when the bed is tilted. In dump-cars of this class as heretofore constructed the sideboards have been connected to suitable links, said links being arranged to swing on pivots to raise the side-boards to permit the dumping of the load; but the side-boards and links have been fixedly or non-adjustably connected, so that their angular position with reference to each other has not changed when the side-boards were elevated, the side-boards maintaining a tangential position with reference to the arc of the circle in which they were swung when raised and lowered. This construction is objectionable, for the reason that the lower edges of the side-boards project down toward the bed of the car and frequently into the path of the discharging dirt,

o interfering with its discharge and also with access to the bed from the side.

One of the objects of my invention is to overcome this objection, which object I accomplish by providing for swinging the side boards when raised so as to turn them into a position approaching parallelism with the bottom of the bed, and in its best form my invention consists in providing means for swinging the lower edges of the side-boards 4o outward and upward when raised, thereby providing a wider space for the discharge of the load.

Another object of my invention is to relieve the side-boards from excessive friction 5 caused by the load when raising them, and this I accomplish by providing mechanism which operates to move the lower edges of the side-boards outward as soon as they begin to rise, carrying them slightly away from the sides of the bed and permitting the sideboards to rise more freely.

. Another part of my invention relates to the apparatus for raising the side-boards automatically when the car-bed is tilted to dis charge its load. In my Patent No. 612,263, dated October 11, 1898, I have illustrated and described a toggle apparatus for raising the side-boards, in which apparatus the sideboards are raised by toggle-levers pivoted together and to the side-board links and to the truck, the arrangement being such that when the car-bed is tilted the side-boards are raised automatically. My present invention provides certain improvements on the construction of my said patent, such improvements consisting in connecting the toggle-levers to the car-bed instead of to the truck, so that when the car-bed is thrown from the truck,

as is frequently the case in apparatus of this character, the toggle apparatus goes with the bed and is less liable to be damaged than where it is connected with the truck. Afurther improvement consists in pivoting the toggle-levers to the car-bed in line with the axis about which the bed swings, thereby maintaining the toggle-levers in position to operate properly.

In the accompanying drawings I have illustrated my improvements as applied to one style of dump-car; but it should be understood that they may be applied to other styles of cars and to such other apparatus as they are adapted, my invention not being restricted to specific details except in so far as such details are particularlyclaimed.

In the accompanying drawings, Figure l is a perspective view of a dump-car embodying my improvements. Fig. 2 is a perspective view showing the car-bed tilted; and Fig. 3 is an end view of the upper part of a dump 0 car, illustrating the operation of the sideboards.

Referring to the drawings, 4 indicates the wheels of a truck which supports the carbed 5. The truck is provided with longitudinal side beams 6 7 and end beams S, as shown in Figs. 1 and 2, and with the usual draw-bar 9. The truck is also provided with a series of sockets 10, arranged centrally thereof at suitable intervals, as shown in Fig. l, which sockets receive pins pivotally connected to the under side of the car-bed along the central line thereof. The pivots of said pins are indicated by 11 in the drawings. The arrangement is such that the carbed may swing toward either side of the truck about the pivots l1 untilthe sides of the bed rest on the side beams 6 7, as illustrated in Fig. 2. If the truck is tipped over or de railed, the car-bed may separate from the truck, as the pins which fit in the sockets 10 draw out in the manner described in my nected' to the side-boards near the lower edges thereof, as shown in Fig. 2. The outer ends of the links 16 are connected to the sideboards 13 14, respectively, near the upper edges thereof, and their inner ends are connected to pivots 18 19, arranged at opposite sides of the pivot 17 and slightly below said pivot. It will be understood that the arrangement of the links 15 16 at both ends of the car is the same. The length of the links 15is such that when the side-boards are in position across the ends of the car the sideboards will be held tightly in contact with the ends, and the same is true of the links 16. Inasmuch, however, as when the sideboards are in such position the links 15 assume a diagonal relation to the ends of the car, as shown in Fig. 3', as soon as the sideboards are raised their lower edges are carried outward from the car-bed, releasing them from the friction of the load to a greater or less extent and facilitating their elevation. Furthermore, as the side-board 13 is raised its upper edge swings about the axis 18, while its lower edge swings about the axis 17, the result being that as the side-board moves upward its lower edge is thrown outward, so that the side-board approaches a position of parallelism with the bed of the car, thus affording a greater space for the discharge of the load and for access to the car-bed, as hereinbefore described. The same is true of the rest upon the uppersurfaces of the side beams.

6 7, and as the car-bed continues to tilt said levers 20 are carried upward, raising the As shown in Fig. 3, the side-boards, if de-,

sired, may be raised to a vertical position, in which case the links 16 assume an inclined position, extending across the pivots 17,Wl1ich sustain said links, and as the side-boards at i such time lie at the opposite side of said pivots 17from the pivots 18 the side-boards maintain their vertical position without further a su pport.

I have used the term side-board herein in a generic sense, and it should be understood that the term as so used includes not only side-board's proper, but end boards and other equivalent devices.

That which I claim as my invention, and desire to secure by Letters Patent, is-

1. In a dump-car, the combination of a carbed, a side-board therefor, a swinging support for said side-board carried by the can body, and means for rocking the side-board upon its support when it is raised to move its lower edge outward from the car-bed, substantially as described.

2. In a dump-car, the-combination of a carbed, a side-board therefor, a swinging support for said side-board adapted to carry said side-board up over the carbed, and means for varying the angle of said side-board to its support, when raised, substantially as descri bed".

3'. In a du mpcar, the combination of a carbed, a side-board therefor, links connecting said side-board to the car-bed, and adapted to swing, to carry said side-board up from the side of the car and means for varying the angle of said side-board to said links, when it is raised, substantially as described.

4. In a dump-car, the combination of a carbed, a side-board therefor, andlinks at one end of the car-bed connecting said side-board thereto, said links being pivoted at different points to the side-board and to the car-bed, substantially as described.

5. In a dump-car, the combination of a carbed, a side-board therefor, a link connecting theupper edge of said side-boardwith the car-bed, and a link connecting the lower edge of said side-board with the car-bed at apoint removed from the point at which the first link is connected to the car-bed, substantially as described.

6. In a dump-car, the combination of a carbed, a pivoted side-board therefor, means for automatically raising said side-board when the dump-car is tilted, and means for turning the side-board upon its pivot to move its lower edge outward as it is raised, substantially as described.

7. In a dump-car, the combination of a carbed, a side-board therefor, a swinging support for said side-board, means for turning the side-board upon its support to move its lower edge outward when it is raised, and

means for automatically raising the sideboard when the dump-car is tilted, substantially as described.

8. In a dump-car, the combination of a carbed, a side-board therefor, a swinging support for said sideboard, and means connected only to said car-bed and to the side-board support for automatically raising the sideboard when the carbed is tilted, substantially as described.

9. In a dump-car, the combination of a truck, a car-bed separably mounted thereon and adapted to tilt to discharge its load, a side-board for said car-bed, a swinging support for said side-board, and means connected only with said car-bed for automatically raising said side-board when the car-bed is tilted, substantially as described.

10. In a dump-car, the combination of a carbed, a side-board therefor, a swinging support for said side board, and toggle levers connected to said swinging support and to said car-bed, substantially as described.

11. In a dump-car, the combination of a truck, a car-bed separably mounted thereon and adapted'to tilt to discharge its load, a side-board for said car-bed, a swinging support for said side -board, and toggle levers connected to said swinging support and to said car-bed only for automatically raising the side-board when the car-bed is tilted, substantially as described.

12. In a dumpcar, the combination of a pivotally-supported car-bed, a side-board therefor, a swinging support for said side-board, and toggle-levers pivotally connected to the bed only of the car, said pivotal connections being in line with the axis about which the car-bed swings, said toggle-levers being also connected to -said swinging support, substantially as described.

13. In a dump-car, the combination of a truck, a car-bed pivotally mounted on said truck and adapted to tilt thereon to discharge its load, a side-board, a swinging support for said side-board, and toggle-levers for operating said side-board, one of said levers being pivoted to the bed only of the carand in line with the axis thereof, said lever being adapted to engage the truck when the car-bed is tilted, the other toggle-lever being connected to the first-mentioned lever and to the swinging support of the side-board, substantially as described.

14. In a dump-car, the combination of a truck, a car-bed detachably mounted on said truck and adapted to tilt thereon to discharge its load, a side-board, a swinging support for said side-board, and toggle-levers for operating said side-board, one of said levers being pivoted to the bed only of the car in line with the axis thereof, said lever being adapted to engage the truck when the car-bed is tilted, the other toggle-lever being connected to the first-mentioned lever and to the swinging support of the side-board, substantially as described.

THOMAS R. MOKNIGHT.

Witnesses:

F. O. CRANE, H. S. MAOLAY. 

